Germany and other partner nations can order DiNa rounds and components under existing framework agreements. Diehl Defence said the new line would help secure ammunition supplies for the German armed forces and other NATO members.
The project began in June 2024, and pilot production started in October 2026 after the conversion of about 7,000 square metres of an existing production hall. Diehl Defence put the investment in the mid double-digit millions of euros, with two new forging presses and equipment for forming, welding, machining, surface treatment and testing.
Diehl Metall makes the shell bodies, while Diehl Defence sets the quality, performance and integration requirements and incorporates the bodies at a later stage of ammunition production. The line uses traceability systems to document quality at each stage of production.
Nammo developed the DiNa round and supplied technology and manufacturing expertise for the project, building on the ARGE DiNa joint venture that Diehl and Nammo set up in 2019 to serve the German market. “Diehl Metall, Diehl Defence and Nammo each contribute their respective strengths and share responsibility for delivery,” said Helmut Rauch, chief executive of Diehl Defence.
“Delivering the defence capabilities needed for Europe requires a strong defence industrial base and close cooperation across industry,” said Morten Brandtzæg, Nammo’s president and chief executive. “We are proud to support this project and our partnership with Diehl, contributing to increased production capacity and supply security for our customers and allied nations.”
Most workers who previously made synchroniser rings at Röthenbach are retraining for new roles, with additional skilled staff joining them and the site continuing to use its existing production capacity. “With this project we are opening a new chapter for the Röthenbach location and creating prospects for its continued development,” said Alexander Diehl, chief executive of Diehl Metal Forgings.
